Nuvoton NSP2340BA24E Smart Buzzer Chip Adds Voice Alerts to Devices
Nuvoton Technology has introduced the NSP2340BA24E smart buzzer IC, which enables conventional piezo buzzers to play voice messages, melodies and sound effects instead of simple beeps. The single-chip solution integrates audio storage, buzzer driving, voltage boosting and amplification for clearer device alerts and status notifications.
Nuvoton NSP2340BA24E smart buzzer chip
Key Characteristics
Function: Converts standard piezo buzzers into voice/melody/sound-effect players
Integrated blocks:
Embedded Flash memory for audio storage
Buzzer driver
Voltage booster (up to 24 V output)
Class-AB amplifier
Booster output: up to 24 V
Host interfaces: UART, I²C and Two-Wire
Programming: In-System Programming (ISP) — audio content can be updated via host MCU
Direct drive of piezo buzzers
Allows custom voice messages and sound effects for product differentiation
By combining storage, boost, drive and amplification in one IC, the NSP2340BA24E turns a simple buzzer into an intelligent audio interface that communicates operating status, warnings and notifications more clearly than traditional beep patterns.
Target Applications
Home appliances (operation and completion notifications)
Security systems (warning alerts)
Industrial equipment (status indication)
Healthcare devices
Other smart products requiring clear audible feedback
